Midcontinent ISO Constraint Classification
Transmission
Generation
Both
Unconstrained

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Data Centers
Operational
Proposed
Construction

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Transmission Lines
765 kV+
500 kV
345 kV
230 kV

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Pnode Severity Tier
Critical (≥0.75)
Elevated (≥0.50)
Moderate (≥0.25)
Low (<0.25)

Marker size = severity score